I have a viper fob remote start and optima yellow top battery works way better than oem mazda battery ( didn’t like the cold) had viper app but drained battery much faster

always works but extreme cold creates other issues

I have to plug my block heater in colder than -22c (-7.6 freedom units) and sometimes if it has been sitting the battery doesn’t have enough power to start causes problems but works great with two way remote

got an Optima yellow top AGM for mine good till -25c (-13 in FREEDOM Units) then I have to plug my car in and drive it every day otherwise the battery dies

also good if you have accessories like dash cam, radar detector

Like a lifted 3 with ugly plastic

I like my mazda 3 hatch